SH 121/183 is an east-west corridor through North Richland Hills, Hurst, Bedford, Euless and Fort Worth. TxDOT has been developing and widening SH 121/183 since 1939. As funding is identified, future widening is planned on the entire corridor.

TxDOT is studying the use of public-private partnerships to accelerate construction on I-820, SH 121/183 and portions of I-35W by combining express lanes and high occupancy vehicle lanes within a comprehensive development agreement.

The map provided below shows past and future projects with the greatest impact on this corridor. The map's history timeline and traffic counts are also broken out separately for easier access.